Llanberis, Caernarfon, LL55 4UP

Caernarfon is a royal town, community and port in Gwynedd, Wales. It has a population of 9,852. It lies along the A4871 road, on the eastern shore of the Menai Strait, opposite the island of Anglesey. The city of Bangor is 8.6 miles (13.8 km) to the north‑east, while Snowdonia (Eryri) fringes Caernarfon to the east and south‑east. The town’s location on the Menai Strait places it near the coast, and its proximity to the national park of Snowdonia offers scenic surroundings. Caernarfon’s historic status as a royal town suggests a rich cultural heritage, and its port activities indicate maritime connections. The A4871 provides road access to nearby Bangor and the broader region. The LL55 postcode places the locality within the postal district covering Caernarfon and surrounding areas.